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Completed Research, August 2018

Research Completed on Large Refrigeration Systems, Heat Gains of Equipment

From eSociety, August 2018


Sustainable design of large industrial and commercial refrigeration systems can present some difficult challenges. Each system typically requires a unique design and includes many facets that influence sustainability. These sustainable design choices are interconnected can result in various performance tradeoffs.

A recently completed ASHRAE research project aims to help those involved in the design, ownership and operation or commissioning of refrigerated facilities or refrigeration systems by presenting strategies for sustainable design.

Emphasis is put on three key complimentary principles:

1) minimization of the need for refrigeration

2) management of the resources used in refrigeration

3) minimization of the impact of resources.

The Guide for Sustainable Refrigerated Facilities and Refrigeration Systems is available in the ASHRAE bookstore.

1634-RP, Guide for Sustainable Refrigerated Facilities and Refrigeration Systems, was sponsored by the ASHRAE Refrigeration Committee. The principal investigator was Dr. Richard Love with Massey University.


A recently completed ASHRAE research project studied heat gain, diversity and load factors from modern office equipment.

As better building envelopes and HVAC equipment efficiencies improve building energy efficiency, plug loads are becoming a more significant contributor to building energy consumption.  Accurately assessing the energy consumed and heat gain contributed by plug loads are necessary for proper sizing and performance of HVAC systems.

The final report details the study of heat gains of new types of equipment, diversity and load factors. For most of the tested equipment, heat gain values were found to be considerably lower than nameplate values and load factors are 10-33% lower than previously published values.

Two technical papers have been published in ASHRAE’s Science and Technology for the Built Environment (Vol. 24(3), 2018 & Vol. 24(4), 2018).

1742-RP, Update to Measurements of Office Equipment Heat Gain Data, was sponsored by TC 4.1, Load Calculation Data and Procedures. The principal investigator was Dr. Christian Bach with the Oklahoma State University.